Re: Digest Number 221

Jon,
What schematic package do you use?


Steve Stovner
Stovner-Wareing@...

----- Original Message ----- > From: Jon Elson <jmelson@...>
> Subject: Re: edm
> Yes, I should have included the URL for my simple setup in the message.
> I'll do it now, then : http://www.artsci.wustl.edu/~jmelson/edm.html
> This has a step-down transformer, which isolates the rest of the EDM
> power supply from the line, and reduces the voltage to about 30 Volts.
> That is safe enough you are not even likely to get a shock if you touch
> the work and the electrode at the same time, but I don't recommend
> doing that, anyway.
>
> Because it confused someone, that transformer with the arrow across it
> looks like it is isolating the line, but a standard variac does not do so.
> It is just the closest symbol I could get in the schematic package I used.
>
> Jon